Schau wrote:

Hi Ryan, maybe multitoken are only supported in the long form: --sending 23 5678 have you tried? Sönke

-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Ryan McConnehey Sent: Monday, November 03, 2008 6:42 AM To: Boost-users Subject: [Boost-users] [program_options] Using multitokens

In the example documentation a multitoken is used for strings as follows:

("email", boost::program_options::valuevaluestd::string()->multitoken(), "email to send to")

This means the command line can have the following option.

--email beadle@mars beadle2@mars

I'm trying to use the multitoken with an unsigned long as follows:

("sending,s", boost::program_options::value<unsigned long>()->multitoken(), "Distination node address and port number to transmit data.")

The command option I would like to use is:

-s 23 6543

When trying to do this the following error occurs.

Unhandled exception: in option 'sending': multiple values not allowed

How do I correctly define a multitoken and then how do I retrieve the different values?

Ryan

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I've tried using the long form of the option and the error is still given. Ryan

Now I run into another problem with multitoken: In my code I have the following option: ("modelparams", po::value()->multitoken(), "some modelparams") If I run my program only with --modelparams 0.7 1.2 33.0 everything is fine. But now I would like to append another option: --modelparams 0.7 1.2 33.0 --otheroption but get the exception: "in option 'modelparams ': invalid option value '--otheroption'" How can I get this right? Daniel

Ryan McConnehey wrote:

Shouldn't multitoken read tokens until the next option is found?

Ryan That was my hope, too. Because I have not found a solution yet I gave up with multitoken. Know I define:

("modelparams", po::value<string>(), "some modelparams") and in the command line I write --modelparams "0.7 1.2 33.0" --otheroption then I parse the resulting string by hand: double param[3]; istringstream is(vm["modelparams"].as<string>()); for(int i=0;i<3;i++){ is>>param[i]; } Daniel